adj. 25B6; adjective
the desire for freedom is irrepressible : INEXTINGUISHABLE, unquenchable, uncontainable, uncontrollable, indestructible, undying, everlasting.
his irrepressible personality : EBULLIENT, exuberant, buoyant, sunny, breezy, jaunty, light-hearted, high-spirited, vivacious, animated, full of life, lively; informal bubbly, bouncy, peppy, chipper, chirpy, full of beans.